Climate change threatens everything we hold dear, even if you're an economist. The business case for boosting investment in renewables and energy efficiency is incredibly compelling. Yet still the Chancellor seems hell-bent on hitching our economy to the dirty energy infrastructure of the past. So here's what's topping my wish list on George's Big Day: let's put politics aside and have a cross party statement on the risk of climate change to the UK economy. What a sweet surprise that would be - and what true political leadership it would demonstrate.

For now the Green party are an obvious choice for students wanting change. Fears of climate change and the scrapping of tuition fees, social welfare policies, high representation of women and LGBT candidates are all reasons why.

In the past, voices calling for improved Sex Ed in schools have found themselves drowned out. But the debate is shifting because it's plain that a significant number of our kids are being let down. A step forward is long overdue. It's time to shake the sand from our ears, take a collective breath, and check our classroom compass. We must equip our kids them with the tools they need for life - keeping them ignorant puts them at risk. Our children deserve the very best education. And our teachers deserve the very best support in giving it to them.

Do I vote again for a party whose values do not correspond with my own, and remain hopeful that Labour will shift back to the left? Or do I move on, vote for a party whose policies I more closely believe in, and hope for a radical shift in the national allocation of seats?

Demographically, Green Party support clearly skews younger - with those aged 18-24 much more likely to support the party than any other age group. Those aged 45+ are less likely than average to support the party...

The truth is, we still do not know enough about the potential health, societal and environmental impacts of fracking. The government's gone all-out to win hearts and minds on fracking - assuring robust regulation and economic benefits. The reality looks quite different.

On Monday, the Green Party unveiled their new campaign poster in Westminster, boasting a rich, emerald green where the MP of Brighton Pavillion Caroline Lucas and party leader Natalie Bennett stand, both with beaming smiles and the tagline: What are you afraid of boys? - I like it...

When did we give up? When did we become so pessimistic as a society that we couldn't envision any good coming out of politics? And when did shallow aesthetic concerns trump nuanced political commentary?

The Green Party have a duty to continue to provide for the nation a fresh, fair and radical alternative to the 'business as usual' establishment, just as media chiefs from the BBC, ITV, SKY et al have a duty to promote and encourage a wide, engaging and relevant debate involving those extended the right to vote and elect.

We should bring franchises back into public hands as they fail or expire. To do so, we must first acknowledge our railways are a social, economic and environmental investment... Our fragmented system doesn't work. The separation of track and wheel is madness. A new rail system should be fully reunified - and half measures don't deliver.

The NHS Reinstatement Bill does what it says on the tin. This is the Bill for a truly publicly-provided healthcare service. I hope the shadow secretary of state for health will follow its logic. Our principles for reform should not be shaped by who privatised the NHS but by how it was privatised and where the dangers still lie.

It would appear the powers that be want you to imagine a future without the Greens. This is the future the BBC is prefiguring with its decision to exclude us from the election debates. By doing so, they create a self-fulfilling prophecy: Greens are not a serious electoral option and our contribution therefore means nothing.

If you believe in drastic reform, you have to vote for it. The disengagement espoused by Russell Brand won't change anything. The Greens scoring ten or fifteen percent in a general election, together with a scatter of seats in the university towns, would make the established parties take notice.

This week heralded an all too familiar event in the UK Parliament - a House of Commons debate on the badger cull. With the second year of culling having very recently completed, politicians and animal lovers alike are eagerly awaiting the news of just how many badgers were killed over the last six weeks in Gloucestershire and Somerset.

Climate change demands a collective response. We can't expect other countries to act if we don't. And as UN Secretary General Ban Ki Moon said: "Science has spoken. There is no ambiguity in their message. Leaders must act; time is not on our side."

We're at a crossroads. We can shake the sand from our ears, or count the cost of our inertia. If we don't trust our voters, they will never trust us, and we'll have no one but ourselves to blame for the cynicism, disillusionment and disengagement that will continue to pervade our democracy.

The case for reform grows stronger by the day, as does public support for a rethink. We need to be bold and courageous to follow the evidence and put an end to the prohibitionist approach which has repeatedly and invariably failed us all.

Standing in the middle of Parliament Square, I watch the October twilight turn the breath of the Superintendent and the Baroness into steam. In the middle of hundreds of protestors with placards like "People, not banks!", the Green member of the House of Lords Jenny Jones is receiving a Pinteresque line of questioning...

The UK Parliament vote to bomb Iraq was depressing. Crude political words about 'homeland security', threats to our shores, threats to our people, have whipped many into a panic. The persuasion to bomb was clumsy. There are alternatives.